6239009 has 4 divisors (see below), whose sum is σ = 7130304. Its totient is φ = 5347716.

The previous prime is 6238987. The next prime is 6239033. The reversal of 6239009 is 9009326.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9009326 = 2 ⋅4504663.

It is a cyclic number.

It is not a de Polignac number, because 6239009 - 2¹⁶ = 6173473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6239099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445637 + ... + 445650.

It is an arithmetic number, because the mean of its divisors is an integer number (1782576).

Almost surely, 2^6239009 is an apocalyptic number.

It is an amenable number.

6239009 is a deficient number, since it is larger than the sum of its proper divisors (891295).

6239009 is an equidigital number, since it uses as much as digits as its factorization.

6239009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891294.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 6239009 is about 2497.8008327327. The cubic root of 6239009 is about 184.0935350685.

The spelling of 6239009 in words is "six million, two hundred thirty-nine thousand, nine".